Two sides of a triangle are of lengths 5 cm and 1.5 cm. The length of the third side of the triangle cannot be
Given: two sides are given.
Let AB = 5cm and BC = 1.5cm
Third side AC should:
AB-BC < AC < AB + BC
5-1.5 < AC < 5 + 1.5
3.5 < AC < 6.5
Hence, it cannot be 3.4 because it is less than 3.5.
Option D is correct.